CA1085888A - Hopper device for material spreader - Google Patents
Hopper device for material spreaderInfo
- Publication number
- CA1085888A CA1085888A CA305,248A CA305248A CA1085888A CA 1085888 A CA1085888 A CA 1085888A CA 305248 A CA305248 A CA 305248A CA 1085888 A CA1085888 A CA 1085888A
- Authority
- CA
- Canada
- Prior art keywords
- auger
- cover member
- wall
- hopper
- extending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
- E01C19/202—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels solely rotating, e.g. discharging and spreading drums
- E01C19/203—Centrifugal spreaders with substantially vertical axis
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C19/2005—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders without driven loosening, discharging or spreading
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C2019/2055—Details not otherwise provided for
- E01C2019/207—Feeding the distribution means
- E01C2019/209—Feeding the distribution means with transverse auger
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
HOPPER DEVICE FOR MATERIAL SPREADER
Abstract of the Disclosure A hopper device for mounting transversely across the ma-terial discharge end of a vehicle mounted dump bed adapted to contain particulate material to be spread over a roadway being travelled by the vehicle. This type of hopper includes fixed first and second spaced end walls, a fixed back wall between the end walls and an elongated auger extending between the end walls, and an arrangement for rotating the auger about an axis to move material through the hopper toward one end of the hopper. This type of hopper generally includes a cover member extending between the end walls and movable between a spreading position where the material can dump into the hopper and be spread from the hopper, a dumping position where the material can be dumped over the hopper and a cleaning position where access is possible to the auger for cleaning by a water hose. In accordance with this in-vention, the cover member is mounted on links that coact with the end plates to hold the cover plate in each of the three inde-pendent positions without losing control of the movement of the cover member between these positions.
Abstract of the Disclosure A hopper device for mounting transversely across the ma-terial discharge end of a vehicle mounted dump bed adapted to contain particulate material to be spread over a roadway being travelled by the vehicle. This type of hopper includes fixed first and second spaced end walls, a fixed back wall between the end walls and an elongated auger extending between the end walls, and an arrangement for rotating the auger about an axis to move material through the hopper toward one end of the hopper. This type of hopper generally includes a cover member extending between the end walls and movable between a spreading position where the material can dump into the hopper and be spread from the hopper, a dumping position where the material can be dumped over the hopper and a cleaning position where access is possible to the auger for cleaning by a water hose. In accordance with this in-vention, the cover member is mounted on links that coact with the end plates to hold the cover plate in each of the three inde-pendent positions without losing control of the movement of the cover member between these positions.
Description
Disclosure This invention relates to the art of spreading ma-terial, such as salt or gravel, on roadways and more particularly to an improved hopper for use on a vehicle employed in spreading material on a road-way.
The invention is particularly applicable for use on a vehicle for spreading salt on a roadway during the winter season and will !, ., ., ~ , ~,' 'I '' ' ' ' ~ ' . 1 '.' be described with particular reference thereto; however, it is appreciated that the invention has broader applications and can be used for vehicles spreading various materials along a road-way or path being travelled by the Yehicle.
Background of the Invention For many years salt has been spread along a roadway during the winter season to remove ice and reduce the tendency for skidding by vehicles travelling along the roadway. In more re-cent years, the salt has been-spread by a rotating spreader which centrifugally discharges salt dropped on the spreader from a dump bed carried ~y a truck or other vehicle moving along the roadway.
The most successful devices of this nature have involved an elon-gated hopper extending along the discharge end of the dump bed and including a lower rotating auger which moves the salt toward ~15 one end of the hopper. At this end, there ls a discharge opening whîch discharges or drops salt from the hopper onto ~he spinning broadcast spreader. This general combinati~n is now widely used in spreading salt along a roadway. Such a hopper is very bene-ficial during use as a spreader; however, if the truck is to be ~20 used to dump salt or other material directly onto the roadway in a wide path the hopper has to be removed. To overcome this diffi-culty, it was proposed that the hopper include a movable cover plate, as shown in Swenson 3,189,355. The cover plate is moved into a vertical position for spreading and is then shifted to a horizontal position to allow dumping of material over the hopper.
Although the structure of this patent is not commonly used, the con-cep~ of providing a cover having a vertical position for spreading and a horizontal position for dumping is quite common in salt spreaders. Other patents showing this feature are Daneman 3,349,~70 and Buchmann 3,438,585. Although a movable cover which could be moved between a dumping position and a spreading posltion was widely used, this type of structure still presented serious difficulties. Salt being spread would often clog in the auger, especially if it became damp or was allowed to sit for a pro-longed time in the hopper. Consequently, it had been proposedthat the hopper be provided with a means for allowing access to the auger for cleaning~ Such an arrangement is shown in Swenson 3,510,066. In this patent, the rear wall of the hopper is pivotally mounted so that it may be dropped for cleaning access to the auger extending longitudinally along the lower portion of the hopper.
This type of structure allows cleaning by a water hose, etc. and utilizes a movable upper cover shiftable between two positions and a removable rear wall for cleaning. These patents discussed herein are incorporated ~or reference for the purpose of back-ground information.
The Invention The present invention relates to an improvement in the hoppers as disclosed in the prior patents mentioned above and ~
similar structures now available which improvement provides a ~ ' single cover which is movable between three positions allowingdumping, spreading and cleaning. In accordance with the present invention, ~he single cover is mounted on a link arrangement which allows it to move between the three separate and distinct positions without losing control over the cover member. In addition, rigid locking of the cover is possible in at least the dumping and spreading positions. Consequently, a sturdy structure is provided in these two operating and weight absorbing positions.
In accordance with the present invention, there is provided a hopper of the type described above which includes first and second links each having first and second ends. Means are provided .~
~85i 881~
for pivotally mounting the first end of the first link on one end wall of the hopper for pivotal movement about an axis fixed on the hopper and means for pivotally mounting the first end of the second link on the second end wall for pivotal movement around the same axis. The cover member is formed from a generally flat plate extending between the two spaced end walls and an integral closure member e~tending angularly from the flat plate and gen-eraLly coextensive therewith. Means are provided for pivo~ally mounting the cover ~ember on the second ends of the two links for pivotal movement about a second axis which moves with the links and is parallel to the first mentioned axis. First locking means are provided for releasably securing the cover member in the first position with the flat plate defining a front wall for the hopper and the closure member closing the lower portion of the hopper below the auger. This closure member includes a material discharge opening carried by the cover member for forming the discharge open ing for the hopper to be used during the spreading operation. There is provided a second locking means for securing the cover in the second position with the flat plate extending over the auger from the discharge end of the dump bed to allow dumping of the material over the hopper and onto the roadway being traversed by the vehicle onto which the hopper is connected.
The primary object of the invention is the provision of a ; hopper device of the type carried by a vehicle and for use in spreading material from a dump bed on the vehicle onto a roadway along which the vehicle travels, which hopper device can be easily connected to standard vehicles, is somewhat inexpensive to produce, and can be easily maintained.
Another object of the present invention is the provision of a hopper device as defined above, which hopper device provides ~S~
a single cover selectively movable between spreading, dumping and cleaning positions.
Still a further object of t~e present invention is the pro-vision o a hopper device as defined above, which hopper device provides cleaning access to both the side and bottom of an auger rotatably mounted within the hopper.
Another object of the present invention is the provision of a hopper device as defined above, which hopper device provides a movable cover~member which is supported on spaced links to control 1 J manual movement of the cover member between spreading, dumping and cleaning positions.
More particularly there is provided in a hopper device for ~ mounting transversely across the material discharge end of a vehicle - mounted dump bed adapted to contain particulate material to be spread over a roadway being travelled by said vehicle, said hopper device including fixed first and second spaced end walls, a fixed back wall connected to s'aid end'walls,' an' , . .. .. .....
'' elongated auger extending between said end walls, means for rotating said auger about an axis generally parallel ~' 20 to said back wall for conveying said material toward said first end wall, and a cover member extending between said end walls, said cover member being movable between a first spreading position forming a front wall-for said hopper9 a second dumping position forming a top wall for said hopper, and a third cleaning position exposing said auger, the improvement comprising: said cover member including a first wall member having an outwardly facing surface defining first and second generally parallel' edges-extend-ing between said end walls and a second wall member fixed to said first wall member at an angle extending al~ay from said outwardly facing surface and adjacent said first 5 ~
~ s~
edge; at least one link having first and second endsi means for pivotally connecting said first end of said link to said cover on an axis movable with said cover, between said edges and generally parallel to said auger axis;
means for pivotally connecting said second end of said link.
to an axis generally fixed on said hopper device,and parallel 1' :
to said movable axis adjacent said back wall; first locator means for releasably securing said cover member in said .
first position with said first wall member generally , parallel to said back wall and said second wall forming .. ,~
the bottom of said hopper; second locator means for ;
releasably securing said cover member in said second position with first wall member extending over said auger , and from said discharge end for forming an upper cover for said hopper; means for securing said cover member in said :~
third position with said first wall member and said secQnd wall member pivoted away from said auger and generally ;
toward said ~ac~ wall to form a transverse access opening to sa;d auger; and, means forming a material discharge -openin~ in said second wall member of said cover member ' `~:
adjacent said.first end wall. ' In a further aspect of the invention there is provided .
in a hopper device for mounting transversely across :
the material discharge end of a vehicle mounted dump bed adapted to eontain particulate material to be spread over a roadway being ;
travelled by said vehicle, said hopper device including fixed first and second spaced end walls, a fixed back wall connected t~ ~
said end walls, an elongated auger extending between said end , walls, means for rotating said auger about an axis generall~ .
parallel to said back wall'for conveying said material toward said'first end wall, and a cover member extending between said end walls, said cover member being movable between a first spread- , ~ - 5a -- 3.
ing position for~ing a front wall for said hopper, a second dump-ing position for~ing a top wall for said hopper, and a third clean-ing position exposing said auger, the improvement comprising:
an auger cover plate having a portion pivotally mounted on said cover member to pivot about an axis generally parallel to said auger axis and a free end extending over said auger, said auger cover pl~te having a stop means engageable with said back wall for holding said plate spaced above said auger when said cover member is in said first position.
These and other objects and advantages will become apparent from the following description taken together with the accompany-ing drawings which are described below. , Brief Description of Drawings ' "' Referring now'to the drawings;
, FIGURE 1 is a pictorial view showing somewhat schematically ~' ~, the preferred embodiment of the invention and its connection onto '~ the rear of a partially illustrated dump bed; , ~, FIGURE 2 is a top elevational view with a cut away portion $o show both end structures and illustrating t~e'preferred em-
The invention is particularly applicable for use on a vehicle for spreading salt on a roadway during the winter season and will !, ., ., ~ , ~,' 'I '' ' ' ' ~ ' . 1 '.' be described with particular reference thereto; however, it is appreciated that the invention has broader applications and can be used for vehicles spreading various materials along a road-way or path being travelled by the Yehicle.
Background of the Invention For many years salt has been spread along a roadway during the winter season to remove ice and reduce the tendency for skidding by vehicles travelling along the roadway. In more re-cent years, the salt has been-spread by a rotating spreader which centrifugally discharges salt dropped on the spreader from a dump bed carried ~y a truck or other vehicle moving along the roadway.
The most successful devices of this nature have involved an elon-gated hopper extending along the discharge end of the dump bed and including a lower rotating auger which moves the salt toward ~15 one end of the hopper. At this end, there ls a discharge opening whîch discharges or drops salt from the hopper onto ~he spinning broadcast spreader. This general combinati~n is now widely used in spreading salt along a roadway. Such a hopper is very bene-ficial during use as a spreader; however, if the truck is to be ~20 used to dump salt or other material directly onto the roadway in a wide path the hopper has to be removed. To overcome this diffi-culty, it was proposed that the hopper include a movable cover plate, as shown in Swenson 3,189,355. The cover plate is moved into a vertical position for spreading and is then shifted to a horizontal position to allow dumping of material over the hopper.
Although the structure of this patent is not commonly used, the con-cep~ of providing a cover having a vertical position for spreading and a horizontal position for dumping is quite common in salt spreaders. Other patents showing this feature are Daneman 3,349,~70 and Buchmann 3,438,585. Although a movable cover which could be moved between a dumping position and a spreading posltion was widely used, this type of structure still presented serious difficulties. Salt being spread would often clog in the auger, especially if it became damp or was allowed to sit for a pro-longed time in the hopper. Consequently, it had been proposedthat the hopper be provided with a means for allowing access to the auger for cleaning~ Such an arrangement is shown in Swenson 3,510,066. In this patent, the rear wall of the hopper is pivotally mounted so that it may be dropped for cleaning access to the auger extending longitudinally along the lower portion of the hopper.
This type of structure allows cleaning by a water hose, etc. and utilizes a movable upper cover shiftable between two positions and a removable rear wall for cleaning. These patents discussed herein are incorporated ~or reference for the purpose of back-ground information.
The Invention The present invention relates to an improvement in the hoppers as disclosed in the prior patents mentioned above and ~
similar structures now available which improvement provides a ~ ' single cover which is movable between three positions allowingdumping, spreading and cleaning. In accordance with the present invention, ~he single cover is mounted on a link arrangement which allows it to move between the three separate and distinct positions without losing control over the cover member. In addition, rigid locking of the cover is possible in at least the dumping and spreading positions. Consequently, a sturdy structure is provided in these two operating and weight absorbing positions.
In accordance with the present invention, there is provided a hopper of the type described above which includes first and second links each having first and second ends. Means are provided .~
~85i 881~
for pivotally mounting the first end of the first link on one end wall of the hopper for pivotal movement about an axis fixed on the hopper and means for pivotally mounting the first end of the second link on the second end wall for pivotal movement around the same axis. The cover member is formed from a generally flat plate extending between the two spaced end walls and an integral closure member e~tending angularly from the flat plate and gen-eraLly coextensive therewith. Means are provided for pivo~ally mounting the cover ~ember on the second ends of the two links for pivotal movement about a second axis which moves with the links and is parallel to the first mentioned axis. First locking means are provided for releasably securing the cover member in the first position with the flat plate defining a front wall for the hopper and the closure member closing the lower portion of the hopper below the auger. This closure member includes a material discharge opening carried by the cover member for forming the discharge open ing for the hopper to be used during the spreading operation. There is provided a second locking means for securing the cover in the second position with the flat plate extending over the auger from the discharge end of the dump bed to allow dumping of the material over the hopper and onto the roadway being traversed by the vehicle onto which the hopper is connected.
The primary object of the invention is the provision of a ; hopper device of the type carried by a vehicle and for use in spreading material from a dump bed on the vehicle onto a roadway along which the vehicle travels, which hopper device can be easily connected to standard vehicles, is somewhat inexpensive to produce, and can be easily maintained.
Another object of the present invention is the provision of a hopper device as defined above, which hopper device provides ~S~
a single cover selectively movable between spreading, dumping and cleaning positions.
Still a further object of t~e present invention is the pro-vision o a hopper device as defined above, which hopper device provides cleaning access to both the side and bottom of an auger rotatably mounted within the hopper.
Another object of the present invention is the provision of a hopper device as defined above, which hopper device provides a movable cover~member which is supported on spaced links to control 1 J manual movement of the cover member between spreading, dumping and cleaning positions.
More particularly there is provided in a hopper device for ~ mounting transversely across the material discharge end of a vehicle - mounted dump bed adapted to contain particulate material to be spread over a roadway being travelled by said vehicle, said hopper device including fixed first and second spaced end walls, a fixed back wall connected to s'aid end'walls,' an' , . .. .. .....
'' elongated auger extending between said end walls, means for rotating said auger about an axis generally parallel ~' 20 to said back wall for conveying said material toward said first end wall, and a cover member extending between said end walls, said cover member being movable between a first spreading position forming a front wall-for said hopper9 a second dumping position forming a top wall for said hopper, and a third cleaning position exposing said auger, the improvement comprising: said cover member including a first wall member having an outwardly facing surface defining first and second generally parallel' edges-extend-ing between said end walls and a second wall member fixed to said first wall member at an angle extending al~ay from said outwardly facing surface and adjacent said first 5 ~
~ s~
edge; at least one link having first and second endsi means for pivotally connecting said first end of said link to said cover on an axis movable with said cover, between said edges and generally parallel to said auger axis;
means for pivotally connecting said second end of said link.
to an axis generally fixed on said hopper device,and parallel 1' :
to said movable axis adjacent said back wall; first locator means for releasably securing said cover member in said .
first position with said first wall member generally , parallel to said back wall and said second wall forming .. ,~
the bottom of said hopper; second locator means for ;
releasably securing said cover member in said second position with first wall member extending over said auger , and from said discharge end for forming an upper cover for said hopper; means for securing said cover member in said :~
third position with said first wall member and said secQnd wall member pivoted away from said auger and generally ;
toward said ~ac~ wall to form a transverse access opening to sa;d auger; and, means forming a material discharge -openin~ in said second wall member of said cover member ' `~:
adjacent said.first end wall. ' In a further aspect of the invention there is provided .
in a hopper device for mounting transversely across :
the material discharge end of a vehicle mounted dump bed adapted to eontain particulate material to be spread over a roadway being ;
travelled by said vehicle, said hopper device including fixed first and second spaced end walls, a fixed back wall connected t~ ~
said end walls, an elongated auger extending between said end , walls, means for rotating said auger about an axis generall~ .
parallel to said back wall'for conveying said material toward said'first end wall, and a cover member extending between said end walls, said cover member being movable between a first spread- , ~ - 5a -- 3.
ing position for~ing a front wall for said hopper, a second dump-ing position for~ing a top wall for said hopper, and a third clean-ing position exposing said auger, the improvement comprising:
an auger cover plate having a portion pivotally mounted on said cover member to pivot about an axis generally parallel to said auger axis and a free end extending over said auger, said auger cover pl~te having a stop means engageable with said back wall for holding said plate spaced above said auger when said cover member is in said first position.
These and other objects and advantages will become apparent from the following description taken together with the accompany-ing drawings which are described below. , Brief Description of Drawings ' "' Referring now'to the drawings;
, FIGURE 1 is a pictorial view showing somewhat schematically ~' ~, the preferred embodiment of the invention and its connection onto '~ the rear of a partially illustrated dump bed; , ~, FIGURE 2 is a top elevational view with a cut away portion $o show both end structures and illustrating t~e'preferred em-
2~ bodiment of the present invention;
FIGURE 3 is a side ~iew of the preferred embodiment of the invention as illustrated in FIGURES 1 and 2 and showing in phantom~ ' the tilting position of the hopper membPr as the vehicle bed is ~ ~
tilted t,o discharge material i.nto the hopper; ' ~-FIGURE,4 is a ~ront elevationa~ view.generally similar to .
FIGURES 2 and 3; . ,' FIGURE 5 is a cross sectional view taken generally along line 5-5 of FIGURE 4 and showing the novel hopper with the cover .
member in the dumping position as also shown in FIGUP~ES 1-4;
FIGURE 6 is a view similar to FIGURE 5 showing the cover member in the dumping position; and, FIGURE 7 is a view similar to FIGURE 5 showing the cover member in the cleaning position.
' ' ' ' Preferred Embodiment Referring now to the drawings wherein the showings are for ~he purpose of illustrating a preferred embodiment of the in-vention only and not for the purpose o~ limiting same, FIGURE 1 . shows a hopper A constructed in accordance with the present in-vention and secured onto the material discharge end lO of a dump body B attached to a vehicle, such as a truck, adapted to ride ~.
along a roadway,and spread or dump mater:ial from the bed onto the roadw~y. As best shown in FIGURE 3, dump bed B is tiltable on a : 20 generally fixed vehicle frame C about a pivot trunnion D. Upon pivo~al movement, tailgate 20 pivots about its upper edge ~o dump material from dump body or bed B into or over hopper A in accord~
ance with standard practice. ':
Referring now more particularly to the details of hopper A, the hopper includes a relatively rigid fixed structure portion including spaced end plates 30, 32 formed from vertical plate portions 30a, 32a between which there is fixedly secured a back plate 40 formed into a vertical wall 42, an angled wall 44 and a deflector wall 46. In the preferred embodiment, wall 42, wall 44 and deflector 46 are formed from single sheet metal bent into the shape shown in FIGURE 5. To mount the rigid portion of hopper A onto bed B there is provided an appropriate securing structure.
In the illustrated embodiment, hinge pin connectors 60, 62 are provided wîth hopper mounted sleeve 64 and bed mounted sleeves 66. An L-shaped pin 68 extends through the sleeves to secure each end of hopper A onto bed or body B. Struts 70, 72 extend from the -bed ~o end plates 30, 32, as best shown in FIGURE 1. As shown in FIGURE 2, as bed or dump body B is pivoted about trunnions D, hopper A is tilted into the phantom line position to accept ma-terial from bed B. Referring now more particularly to FIGURES2-5, auger 80 i5 supported between spaced journals 82, 84 secured in end plates 30, 32, respectively. Auger 80 rotates about axis a to drive material in the hopper from right to left when the hopper is being used for sp~eading material, in a manner to be described later. Any appropriate mechanism can be used for rotating the auger; however, in the illustrated embodiment mechanism 100 includes an appropriately driven hydraulic motor 102 secured onto end plate 32 by mounting plate 104. This motor drives sprocket 106 connected in a driving fashion with sprocket 108 by an interconnecting chain ~0 110. Sprocket 108 includes a shaft 112 drivingly connected to the auger for rotating the auger in the manner similar to standard hoppers used for spreading salt onto a roadway. In accordance with still a further somewhat standard structure there is provided a lower broadcast spreader 120 mounted onto rigid arms 122, 124 fixed to back plate 40. A pivot shat 126 supports frame 130 by rocker brackets 132, 134. A spreader wheel 140 is rotated by a hydraulic motor 142 through a shaft 143 for spreadin~ material dropped onto the wheel in accordance with normal practice. A
rearward facing rim 144 extends circumferentially around a portion of wheel 140 and is fi~ed with respect to frame 130 to prevent lO~S~ill3F-~
discharge of material toward the vehicle bed or body B. A
stabilizer 146 maintains spreader 120 in a generally vertical position as bed B is tilted in a manner illustrated in FIGURE 3.
As so far described, this structure does not differ sub- ;
stantially rom known arrangements for spreading salt or other - particulate material onto a roadway being traversed by a vehicle carrying dump bed or body B. In accordance with known practice~
hopper A is provided with an arrangement for allowing spreading by spreader 120, dumping over the hopper onto the roadway from bed B and cleaning of auger 80. The present invention relates to an arrangement for accomplishing this selective conversion ~of hopper A in an efficient, structurally rigid manner.
- In accordance with the present invention, a cover member - 200 is provided. Although this cover member may have various 15 structural configurations, in the preferred embodiment an upper wall member or plate 202 includes an upper surface 203 having generally parallel edges which are generally parallel to axis a of auger 80. Cover member 200 will be described in the spreading position as shown in FIGURES 1-5. As best illustrated in FIGURE 4, upper plate 202 includes end support means to carry the weight of the plate when it is in the spreading position. In the preferred embodiment, the support means include outwardly extending plates 210, 212 adapted to extend over ledges 214, 216 formed in end plates 30, 32, respectively. These plates coact with the ledges to support cover 200 in a vertical direction and also prevent material from discharging around the ends of upper plate 202.
A closure member or wall 220 is formed integrally with metal plate 202 and angles away from upper surface 203 to form a lower portion of the hopper chamber when cover member 200 is in the spreading position as shown in FIGURE 5. Closure member or wall 220 has a sloped portion 222 terminating in a bottom closure wall 224 which includes an upwardly extending stop rim 226. Conse-; quently, when cover member 200 is in the position shown in FIGURE
5, elongated stop rim 226 rests against the angled wall 44 of back wall 40. Consequently, angled wall 44 coacts with rim 226 ; to provide a locator and a vertical support for the closure member or wall 220 of cover member ~00 when it is in the spreading posi-tion. Links 240~ 242 have ~irst ends 24~a, 242a, respectively, pivoted onto end plates 30, 32 about axis y on pins 244, 246, ; 10 respectively. Axis y is fixed and links 240, 242 pivoted in ~- unison about this axis to control movement of closure member 200 which is fixed to the second ends 240b, 242b of links 240, 242, respectively; Pins 250, 252 join the second ends of the links onto the transversely extending beams 206, 2081 respectively sec~red to the lower portion of upper plate 202. The rim 204 formed integrally with plate 202 also forms a securing element -for transverse beams 206, 208. This provides rigidity to the cover memb~r 200.
As shown in FIGURES 5-7, the ront end of beam 206 is provided with a locator hole 260. A similar hole 260 is pro-vided in a like position on beam 208. In a similar fashion, a locator hole 262 is provided in the vertical plates 30a, 32a of spaced end plates 30, 32, respectively. At the rear end of beam 206 there is provided a locating hole 270. A like positioned locator hole 270 is provided in beam 208. As best shown in FIGURE
7, a locator hole 272 is provided in end plate position 30a. A
corresponding hole 272 is provided in end plake position 32a. As best shown in FIGURE 5, each of the links includes a locator hole 274. In the dumping position shown ln FIGURE 6, locator holes 270 on the beams, holes 272 on the end plates and holes 27~ on _ g _ the links are aligned. In the other position, various other locator holes are aligned in a manner to be described later.
When the locator holes are aligned, they may be locked together or latched by an appropriate means indicated as a series o~ L-shaped, removable pins L, each of which has, in the illustratedembodiment, a crimped key portion 280. As will be explained later, a plurality of upstanding brackets 300 having key openings 302 and inner receptacles 304 are used in conjunction with the lock or latch pins L to hold cover member 200 and the spaced links in the de5ired manually adjusted position to perfor~ the function desired. The arrangement of the pins and locator holes for securing the cover member and links in the desired positions for spreading, dumping and cleaning will be described with re-spect to FIGURES 5, 6 and 7, respectively.
Spreading Position As shown in FIGURE 5, cover member 200 is pivoted around axis z defined by pins 250, 252 so that locator holes 260, 262 ~`
at each beam 206l 208 are aligned. Stops 310 limit movement o the links and hold them in the hori~ontal position for final pivoting of cover member 200 into the position shown in FIGURE
5. Latch pins L are then inserted through holes 260, 262 at each end o cover member 200. Stop rim 226 rests against the lower portion of angled wall 44 of back wall 4a. A discharge opening 230 best shown in FIGURE 2 is then aligned above the central portion o spreading wheel 140 of spreader 120. As auger 80 is rotated by motor 102, material from bed B is moved toward opening 230 and is discharged onto the rotating spreader wheel.
In this position, the lower edge o links 240, 242 rests upon stops or buttons 310 secured onto each end wall 30, 32 as shown best in FIGURE 5 with respect to end wall 30. As can be seen, 5 ~ ~ ~
by the support rim 226, stop 310 and pin L in holes 260, 262, cover member 200 is fixedly secured and held firmly in the spreading position of FIGURE 5 for discharge of material through opening 230 onto rotating spreader 120. Transversely spaced plates 210, 212 also vertically support cover member 200 in the position shown in FIGURE 5.
Dumping Position Referring now to FIGURE 6, cover member 200 i5 positioned in the dumping position allowing discharge of material over sur-face 203 of plate 202 which is generally aligned with the lower wall of dumping bed B. In this position, cover member 200 is pivoted around axis z until locator holes 270, 272 and 274 all align. The links remain on stops or supports 310. In this manner, a lock or latch pin L can be passed through the end plates, links and transverse beams to ho~d the position of member200 illustrated in FIGU~E 6. Also, outwardly extending end plates 210, 212 override ledges 214, 216 to provide additional support for mèmber 200 in the dumping position. Again, links 240~ 242 rest upon stops 310 at each end plate 30, 32. This mul~iple support arrangement for cover member 200 rigidifies the co~er member in the dumping position as shown in FIGURE 6. Plates 210, 212 assist in providing location of the cover member in the dump-ing position as they do in providing location of the cover member in the spreading position shown in FIGURE 5.
Cleaning Position In the cleaning position, as shown in FI&URE 7, locator pin L is secured through locator openings 270 and 274. The locator pin then rests upon ledge 214 to hold the position o~ member 200 as shown in FIGURE 7. Of course, the member can be pivoted up~
wardly away from ledges 214, 216 since the link and cover member -- 11 -- . ~
5~
. now are movable in unison. However, the cover member can not move downwardly beyond a position shown in FIGURE 7 to inad-ver~ently drop during the cleaning operation. In this position, auger 80 is exposed for cleaning by an appropriate device, such as a water hose or manual scraper. In addition, the lower por-tion of the hopper is opened so that water can drain f~om the auger cleaning oper~tion. Still further, back wall 40 can be cleaned -with a hose since the lower wall of the hopper has been removed in that it is carried by the cover member 200.
Auger Cover Plate In accordance with normal practlce, an auger cover plate is generally provided over auger 80 and extending axially outwardly from both ends of the discharge opening 230. This is generally a permanent structure which prevents direct discharge of material through opening 230 by the dumping action of bed B. In this manner, the auger feeds the material to the opening under the auger cover pla~. This type of cover plate causes certain dif~iculty in cleaning the auger. In accordance with another aspect of the present invention there is provided a novel auger cover plate 320 which is supported onto movable cover member 200.by hinged support 322. The cover plate includes an upper plate portion 324 terminat-ing in an angularly positioned free end portîon 326 having a stop ledge or rim 328. In accordance with the illustrated embodiment of the invention,.auger cover plate 320 rests upon sloped wall 44 ~5 of back wall 40 when the cover plate is in the spreading position, as shown in FIGURE 5. This is.normal operating position for the cover plate. In the other positions of cover member 200 cover plate 320 is not required. Thus, as the cover member is moved into the dumping position shown in FIGURE 6, free end 326 rides on the 30 outer surface of auger 80. As cover member 200 is moved into the ~ s~
. cleaning position, free end 328 remains above the auger as shown in FIGURE 7. However, in the illustrated embodiment the stop rim 326 rests upon the upper surface of the auger. It is contem-plated that the auger cover plate is limited in movement by the auger so that it does not need to be manually manipulated as the cover member is changed from the various positions. Of course, an appropriate stop could be provided on the hinged support.322 or another position to assure that the free end of the auger ~- . - .cover.plate..does not extend over the auger in a-manner which 10 would require manual manipulation. However, if manual manipula- -. tion is not considered to be a major concern~ plate 320 can be `
pushed rearwardly as cover member 200 is moved into either the spreading position or the dumping position from the cleaning posi- ;
tion.
' ' ,,, ' : -.
,
FIGURE 3 is a side ~iew of the preferred embodiment of the invention as illustrated in FIGURES 1 and 2 and showing in phantom~ ' the tilting position of the hopper membPr as the vehicle bed is ~ ~
tilted t,o discharge material i.nto the hopper; ' ~-FIGURE,4 is a ~ront elevationa~ view.generally similar to .
FIGURES 2 and 3; . ,' FIGURE 5 is a cross sectional view taken generally along line 5-5 of FIGURE 4 and showing the novel hopper with the cover .
member in the dumping position as also shown in FIGUP~ES 1-4;
FIGURE 6 is a view similar to FIGURE 5 showing the cover member in the dumping position; and, FIGURE 7 is a view similar to FIGURE 5 showing the cover member in the cleaning position.
' ' ' ' Preferred Embodiment Referring now to the drawings wherein the showings are for ~he purpose of illustrating a preferred embodiment of the in-vention only and not for the purpose o~ limiting same, FIGURE 1 . shows a hopper A constructed in accordance with the present in-vention and secured onto the material discharge end lO of a dump body B attached to a vehicle, such as a truck, adapted to ride ~.
along a roadway,and spread or dump mater:ial from the bed onto the roadw~y. As best shown in FIGURE 3, dump bed B is tiltable on a : 20 generally fixed vehicle frame C about a pivot trunnion D. Upon pivo~al movement, tailgate 20 pivots about its upper edge ~o dump material from dump body or bed B into or over hopper A in accord~
ance with standard practice. ':
Referring now more particularly to the details of hopper A, the hopper includes a relatively rigid fixed structure portion including spaced end plates 30, 32 formed from vertical plate portions 30a, 32a between which there is fixedly secured a back plate 40 formed into a vertical wall 42, an angled wall 44 and a deflector wall 46. In the preferred embodiment, wall 42, wall 44 and deflector 46 are formed from single sheet metal bent into the shape shown in FIGURE 5. To mount the rigid portion of hopper A onto bed B there is provided an appropriate securing structure.
In the illustrated embodiment, hinge pin connectors 60, 62 are provided wîth hopper mounted sleeve 64 and bed mounted sleeves 66. An L-shaped pin 68 extends through the sleeves to secure each end of hopper A onto bed or body B. Struts 70, 72 extend from the -bed ~o end plates 30, 32, as best shown in FIGURE 1. As shown in FIGURE 2, as bed or dump body B is pivoted about trunnions D, hopper A is tilted into the phantom line position to accept ma-terial from bed B. Referring now more particularly to FIGURES2-5, auger 80 i5 supported between spaced journals 82, 84 secured in end plates 30, 32, respectively. Auger 80 rotates about axis a to drive material in the hopper from right to left when the hopper is being used for sp~eading material, in a manner to be described later. Any appropriate mechanism can be used for rotating the auger; however, in the illustrated embodiment mechanism 100 includes an appropriately driven hydraulic motor 102 secured onto end plate 32 by mounting plate 104. This motor drives sprocket 106 connected in a driving fashion with sprocket 108 by an interconnecting chain ~0 110. Sprocket 108 includes a shaft 112 drivingly connected to the auger for rotating the auger in the manner similar to standard hoppers used for spreading salt onto a roadway. In accordance with still a further somewhat standard structure there is provided a lower broadcast spreader 120 mounted onto rigid arms 122, 124 fixed to back plate 40. A pivot shat 126 supports frame 130 by rocker brackets 132, 134. A spreader wheel 140 is rotated by a hydraulic motor 142 through a shaft 143 for spreadin~ material dropped onto the wheel in accordance with normal practice. A
rearward facing rim 144 extends circumferentially around a portion of wheel 140 and is fi~ed with respect to frame 130 to prevent lO~S~ill3F-~
discharge of material toward the vehicle bed or body B. A
stabilizer 146 maintains spreader 120 in a generally vertical position as bed B is tilted in a manner illustrated in FIGURE 3.
As so far described, this structure does not differ sub- ;
stantially rom known arrangements for spreading salt or other - particulate material onto a roadway being traversed by a vehicle carrying dump bed or body B. In accordance with known practice~
hopper A is provided with an arrangement for allowing spreading by spreader 120, dumping over the hopper onto the roadway from bed B and cleaning of auger 80. The present invention relates to an arrangement for accomplishing this selective conversion ~of hopper A in an efficient, structurally rigid manner.
- In accordance with the present invention, a cover member - 200 is provided. Although this cover member may have various 15 structural configurations, in the preferred embodiment an upper wall member or plate 202 includes an upper surface 203 having generally parallel edges which are generally parallel to axis a of auger 80. Cover member 200 will be described in the spreading position as shown in FIGURES 1-5. As best illustrated in FIGURE 4, upper plate 202 includes end support means to carry the weight of the plate when it is in the spreading position. In the preferred embodiment, the support means include outwardly extending plates 210, 212 adapted to extend over ledges 214, 216 formed in end plates 30, 32, respectively. These plates coact with the ledges to support cover 200 in a vertical direction and also prevent material from discharging around the ends of upper plate 202.
A closure member or wall 220 is formed integrally with metal plate 202 and angles away from upper surface 203 to form a lower portion of the hopper chamber when cover member 200 is in the spreading position as shown in FIGURE 5. Closure member or wall 220 has a sloped portion 222 terminating in a bottom closure wall 224 which includes an upwardly extending stop rim 226. Conse-; quently, when cover member 200 is in the position shown in FIGURE
5, elongated stop rim 226 rests against the angled wall 44 of back wall 40. Consequently, angled wall 44 coacts with rim 226 ; to provide a locator and a vertical support for the closure member or wall 220 of cover member ~00 when it is in the spreading posi-tion. Links 240~ 242 have ~irst ends 24~a, 242a, respectively, pivoted onto end plates 30, 32 about axis y on pins 244, 246, ; 10 respectively. Axis y is fixed and links 240, 242 pivoted in ~- unison about this axis to control movement of closure member 200 which is fixed to the second ends 240b, 242b of links 240, 242, respectively; Pins 250, 252 join the second ends of the links onto the transversely extending beams 206, 2081 respectively sec~red to the lower portion of upper plate 202. The rim 204 formed integrally with plate 202 also forms a securing element -for transverse beams 206, 208. This provides rigidity to the cover memb~r 200.
As shown in FIGURES 5-7, the ront end of beam 206 is provided with a locator hole 260. A similar hole 260 is pro-vided in a like position on beam 208. In a similar fashion, a locator hole 262 is provided in the vertical plates 30a, 32a of spaced end plates 30, 32, respectively. At the rear end of beam 206 there is provided a locating hole 270. A like positioned locator hole 270 is provided in beam 208. As best shown in FIGURE
7, a locator hole 272 is provided in end plate position 30a. A
corresponding hole 272 is provided in end plake position 32a. As best shown in FIGURE 5, each of the links includes a locator hole 274. In the dumping position shown ln FIGURE 6, locator holes 270 on the beams, holes 272 on the end plates and holes 27~ on _ g _ the links are aligned. In the other position, various other locator holes are aligned in a manner to be described later.
When the locator holes are aligned, they may be locked together or latched by an appropriate means indicated as a series o~ L-shaped, removable pins L, each of which has, in the illustratedembodiment, a crimped key portion 280. As will be explained later, a plurality of upstanding brackets 300 having key openings 302 and inner receptacles 304 are used in conjunction with the lock or latch pins L to hold cover member 200 and the spaced links in the de5ired manually adjusted position to perfor~ the function desired. The arrangement of the pins and locator holes for securing the cover member and links in the desired positions for spreading, dumping and cleaning will be described with re-spect to FIGURES 5, 6 and 7, respectively.
Spreading Position As shown in FIGURE 5, cover member 200 is pivoted around axis z defined by pins 250, 252 so that locator holes 260, 262 ~`
at each beam 206l 208 are aligned. Stops 310 limit movement o the links and hold them in the hori~ontal position for final pivoting of cover member 200 into the position shown in FIGURE
5. Latch pins L are then inserted through holes 260, 262 at each end o cover member 200. Stop rim 226 rests against the lower portion of angled wall 44 of back wall 4a. A discharge opening 230 best shown in FIGURE 2 is then aligned above the central portion o spreading wheel 140 of spreader 120. As auger 80 is rotated by motor 102, material from bed B is moved toward opening 230 and is discharged onto the rotating spreader wheel.
In this position, the lower edge o links 240, 242 rests upon stops or buttons 310 secured onto each end wall 30, 32 as shown best in FIGURE 5 with respect to end wall 30. As can be seen, 5 ~ ~ ~
by the support rim 226, stop 310 and pin L in holes 260, 262, cover member 200 is fixedly secured and held firmly in the spreading position of FIGURE 5 for discharge of material through opening 230 onto rotating spreader 120. Transversely spaced plates 210, 212 also vertically support cover member 200 in the position shown in FIGURE 5.
Dumping Position Referring now to FIGURE 6, cover member 200 i5 positioned in the dumping position allowing discharge of material over sur-face 203 of plate 202 which is generally aligned with the lower wall of dumping bed B. In this position, cover member 200 is pivoted around axis z until locator holes 270, 272 and 274 all align. The links remain on stops or supports 310. In this manner, a lock or latch pin L can be passed through the end plates, links and transverse beams to ho~d the position of member200 illustrated in FIGU~E 6. Also, outwardly extending end plates 210, 212 override ledges 214, 216 to provide additional support for mèmber 200 in the dumping position. Again, links 240~ 242 rest upon stops 310 at each end plate 30, 32. This mul~iple support arrangement for cover member 200 rigidifies the co~er member in the dumping position as shown in FIGURE 6. Plates 210, 212 assist in providing location of the cover member in the dump-ing position as they do in providing location of the cover member in the spreading position shown in FIGURE 5.
Cleaning Position In the cleaning position, as shown in FI&URE 7, locator pin L is secured through locator openings 270 and 274. The locator pin then rests upon ledge 214 to hold the position o~ member 200 as shown in FIGURE 7. Of course, the member can be pivoted up~
wardly away from ledges 214, 216 since the link and cover member -- 11 -- . ~
5~
. now are movable in unison. However, the cover member can not move downwardly beyond a position shown in FIGURE 7 to inad-ver~ently drop during the cleaning operation. In this position, auger 80 is exposed for cleaning by an appropriate device, such as a water hose or manual scraper. In addition, the lower por-tion of the hopper is opened so that water can drain f~om the auger cleaning oper~tion. Still further, back wall 40 can be cleaned -with a hose since the lower wall of the hopper has been removed in that it is carried by the cover member 200.
Auger Cover Plate In accordance with normal practlce, an auger cover plate is generally provided over auger 80 and extending axially outwardly from both ends of the discharge opening 230. This is generally a permanent structure which prevents direct discharge of material through opening 230 by the dumping action of bed B. In this manner, the auger feeds the material to the opening under the auger cover pla~. This type of cover plate causes certain dif~iculty in cleaning the auger. In accordance with another aspect of the present invention there is provided a novel auger cover plate 320 which is supported onto movable cover member 200.by hinged support 322. The cover plate includes an upper plate portion 324 terminat-ing in an angularly positioned free end portîon 326 having a stop ledge or rim 328. In accordance with the illustrated embodiment of the invention,.auger cover plate 320 rests upon sloped wall 44 ~5 of back wall 40 when the cover plate is in the spreading position, as shown in FIGURE 5. This is.normal operating position for the cover plate. In the other positions of cover member 200 cover plate 320 is not required. Thus, as the cover member is moved into the dumping position shown in FIGURE 6, free end 326 rides on the 30 outer surface of auger 80. As cover member 200 is moved into the ~ s~
. cleaning position, free end 328 remains above the auger as shown in FIGURE 7. However, in the illustrated embodiment the stop rim 326 rests upon the upper surface of the auger. It is contem-plated that the auger cover plate is limited in movement by the auger so that it does not need to be manually manipulated as the cover member is changed from the various positions. Of course, an appropriate stop could be provided on the hinged support.322 or another position to assure that the free end of the auger ~- . - .cover.plate..does not extend over the auger in a-manner which 10 would require manual manipulation. However, if manual manipula- -. tion is not considered to be a major concern~ plate 320 can be `
pushed rearwardly as cover member 200 is moved into either the spreading position or the dumping position from the cleaning posi- ;
tion.
' ' ,,, ' : -.
,
Claims (20)
1. In a hopper device for mounting transversely across the material discharge end of a vehicle mounted dump bed adapted to contain particulate material to be spread over a roadway being travelled by said vehicle, said hopper device including fixed first and second spaced end walls, a fixed back wall connected to said end walls, an elongated auger extending between said end walls, means for rotating said auger about an axis generally parallel to said back wall for conveying said material toward said first end wall, and a cover member extending between said end walls, said cover member being movable between a first spreading position forming a front wall for said hopper, a second dumping position forming a top wall for said hopper, and a third cleaning position exposing said auger, the improvement comprising: said cover member including a first wall member having an outwardly facing surface defining first and second generally parallel edges-extend-ing between said end walls and a second wall member fixed to said first wall member at an angle extending away from said outwardly facing surface and adjacent said first edge; at least one link having first and second ends; means for pivotally connecting said first end of said link to said cover on an axis movable with said cover, between said edges and generally parallel to said auger axis;
means for pivotally connecting said second end of said link to an axis generally fixed on said hopper device and parallel to said movable axis adjacent said back wall; first locator means for releasably securing said cover member in said first position with said first wall member generally parallel to said back wall and said second wall forming the bottom of said hopper; second locator means for releasably securing said cover member in said second position with first wall member extending over said auger and from said discharge end for forming an upper cover for said hopper; means for securing said cover member in said third position with said first wall member and said second wall member pivoted away from said auger and generally toward said back wall to form a transverse access opening to said auger; and, means forming a material discharge opening in said second wall member of said cover member adjacent said first end wall.
means for pivotally connecting said second end of said link to an axis generally fixed on said hopper device and parallel to said movable axis adjacent said back wall; first locator means for releasably securing said cover member in said first position with said first wall member generally parallel to said back wall and said second wall forming the bottom of said hopper; second locator means for releasably securing said cover member in said second position with first wall member extending over said auger and from said discharge end for forming an upper cover for said hopper; means for securing said cover member in said third position with said first wall member and said second wall member pivoted away from said auger and generally toward said back wall to form a transverse access opening to said auger; and, means forming a material discharge opening in said second wall member of said cover member adjacent said first end wall.
2. The improvement as defined in claim 1 wherein said first locator means is a pin extending from one of said end walls into an opening in said cover member.
3. The improvement as defined in claim 1 wherein said second locator means is a pin extending from one of said end walls into an opening in said cover member.
4. The improvement as defined in claim 1 including a first opening in said cover member, a second opening in said link and between said ends of said link; said first and second openings being aligned in at least said second posi-tion of said cover member and said second locator means includ-ing a pin means extending into each of said first and second openings.
5. The improvement as defined in claim 4 including a third opening aligned with said first and second openings when said cover member is in said second position and said pin means extending through said third opening in said second position.
6. The improvement as defined in claim 1 including a stop means for limiting movement of said second wall member toward said back wall when said cover member is in said first position.
7. The improvement as defined in claim 1 including an auger cover plate adjacent said first end and aligned with said material discharge opening, said cover plate having a first position pivotally mounted on said cover-member to pivot about an axis generally parallel to said auger axis and a second free end extending over said auger, said plate having a stop means engageable with said back wall for holding said plate spaced above said auger when said cover member is in said first position.
8. The improvement as defined in claim 7 including a stop means for limiting movement of said second wall member toward said back wall when said cover member is in said first position.
9. The improvement as defined in claim 1 including means for stopping movement of said link in a direction toward said auger.
10. The improvement as defined in claim 9 wherein said second locator means includes means for locking said link in said link position.
16 .
16 .
11. In a hopper device for mounting transversely across the material discharge end of a vehicle mounted dump bed adapted to contain particulate material to be spread over a roadway being travelled by said vehicle, said hopper device including fixed first and second spaced end walls, a fixed back wall connected to said end walls, an elongated auger extending between said end walls, means for rotating said auger about an axis generally parallel to said back wall for conveying said material toward said first end wall, and a cover member extending between said end walls, said cover member being movable between a first spreading position forming a front wall for said hopper, a second dumping position forming a top wall for said hopper, and a third cleaning position exposing said auger, the improvement comprising: first and second links each having first and second ends; means for pivotally mounting said first end of said first link on said first end wall for pivotal movement about an axis fixed with respect to said end walls; means for pivotally mounting said first end of said second link on said second end wall for pivotal move-ment about said fixed axis; said cover member having a generally flat plate extending between said first and second end walls and an integral closure member extending angularly from said plate and generally coextensive therewith;
means for pivotally mounting said cover member on the second ends of said links for pivotal movement about an axis movable with said links and parallel to said fixed axis; first locking means for releasably securing said cover member in said first position with said flat plate defining a front wall for said hopper device parallel to said back wall and said closure member closing the lower portion of said hopper device below said auger; second locking means for securing said cover member in said second position with said flat plate extending over said auger and extending from said discharge end of said bed; and means forming a material discharge opening in said closure member adjacent said first end wall.
means for pivotally mounting said cover member on the second ends of said links for pivotal movement about an axis movable with said links and parallel to said fixed axis; first locking means for releasably securing said cover member in said first position with said flat plate defining a front wall for said hopper device parallel to said back wall and said closure member closing the lower portion of said hopper device below said auger; second locking means for securing said cover member in said second position with said flat plate extending over said auger and extending from said discharge end of said bed; and means forming a material discharge opening in said closure member adjacent said first end wall.
12. The improvement as defined in claim 11 including means for fixing said cover member with respect to said first and second links when said cover member is in said second position.
13. The improvement as defined in claim 11 including a fixed stop means for engaging and limiting movement of said closure plate toward said back wall when said cover member is in said first position.
14. The improvement as defined in claim 13 including an auger cover plate adjacent said first end and aligned with said material discharge opening, said cover plate having a first position pivotally mounted on said cover member to pivot about an axis generally parallel to said auger axis and a second free end extending over said auger, said plate having a stop means engageable with said back wall for molding said plate spaced above said auger when said cover member is in said first position.
15. The improvement as defined in claim 11 including an auger cover plate adjacent said first end and aligned with said material discharge opening, said cover plate having a first position pivotally mounted on said cover member to pivot about an axis generally parallel to said auger axis and a second free end extending over said auger, said plate having a stop means engageable with said back wall for holding said plate spaced above said auger when said cover member is in said first position.
16. The improvement as defined in claim 11 including means for stopping movement of said links in a direction toward said auger and at a preselected position for said links.
17. The improvement as defined in claim 16 wherein said second locking means includes means for locking said links in said preselected positions.
18. The improvement as defined in claim 11 including support means on said cover member for vertically supporting said cover member by said end plates when said cover member is in said first position.
19. The improvement as defined in claim 17 wherein said support means include first and second axially out-wardly extending members and means for supporting said outwardly extending members above corresponding abutment member fixed on said end plates.
20. In a hopper device for mounting transversely across the material discharge end of a vehicle mounted dump bed adapted to contain particulate material to be spread over a roadway being travelled by said vehicle, said hopper device including fixed first and second spaced end walls, a fixed back wall connected to said end walls, an elongated auger extending between said end walls, means for rotating said auger about an axis generally parallel to said back wall for conveying said material toward said first end wall, and a cover member extending between said end walls, said cover member being movable between a first spread-ing position forming a front wall for said hopper, a second dump-ing position forming a top wall for said hopper, and a third clean-ing position exposing said auger, the improvement comprising:
an auger cover plate having a portion pivotally mounted on said cover member to pivot about an axis generally parallel to said auger axis and a free end extending over said auger, said auger cover plate having a stop means engageable with said back wall for holding said plate spaced above said auger when said cover member is in said first position.
an auger cover plate having a portion pivotally mounted on said cover member to pivot about an axis generally parallel to said auger axis and a free end extending over said auger, said auger cover plate having a stop means engageable with said back wall for holding said plate spaced above said auger when said cover member is in said first position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US855,541 | 1977-11-29 | ||
| US05/855,541 US4157150A (en) | 1977-11-29 | 1977-11-29 | Hopper device for material spreader having a multipositionable cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1085888A true CA1085888A (en) | 1980-09-16 |
Family
ID=25321521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA305,248A Expired CA1085888A (en) | 1977-11-29 | 1978-06-12 | Hopper device for material spreader |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4157150A (en) |
| CA (1) | CA1085888A (en) |
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| US9127425B2 (en) | 2013-03-14 | 2015-09-08 | Meyer Products, Llc | Granular spreader assembly |
| US9725025B2 (en) * | 2014-02-27 | 2017-08-08 | Vincent R. Meier | Unloading apparatus for dry bulk material |
| DE102016002827A1 (en) * | 2016-03-09 | 2017-09-14 | Rauch Landmaschinenfabrik Gmbh | distributing |
| US10526754B2 (en) | 2017-03-16 | 2020-01-07 | Swenson Spreader, Llc | Material spreader for a heavy duty vehicle |
| US10390489B2 (en) * | 2017-11-13 | 2019-08-27 | Optimal Agricultural Equipment Ltd. | Grain cart with air nozzle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3189355A (en) * | 1963-08-09 | 1965-06-15 | Swenson Spreader & Mfg Co | Truck spreader apparatus |
| US3349970A (en) * | 1965-12-22 | 1967-10-31 | Central Engineering Company In | Hopper for spreader apparatus |
| US3510066A (en) * | 1966-03-10 | 1970-05-05 | Swenson Spreader & Mfg Co | Spreader apparatus |
| US3438585A (en) * | 1966-09-06 | 1969-04-15 | Good Road Machinery Corp | Spreader device |
-
1977
- 1977-11-29 US US05/855,541 patent/US4157150A/en not_active Expired - Lifetime
-
1978
- 1978-06-12 CA CA305,248A patent/CA1085888A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4157150A (en) | 1979-06-05 |
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Legal Events
| Date | Code | Title | Description |
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| MKEX | Expiry |